Trolley.



(N0 Model.)

C. A. JACKSON.

TROLLEY.

(Application filed Feb. 18, 1899.!

Patented Jan. 2 I900.

' support for the trolley wheel.

UNITED. STATES PATENT OFFICE.

CHARLES A. JACKSON, OF LEWISTON, MAINE, ASSIGNOR OF ONE-HALF TO FRED A. ORAM, OF AUBURN, MAINE.

TROLLEY.

SPECIFICATION forming part of Letters Patent No. 640,204, registered January 2, 1900. Application filed February 16, 1899. Serial No. 705,709- (No model.)

To all whom it may concern.-

Be it known that 1, CHARLES A. J AoKsoN, a citizen of the United States, residing at Lewiston, in the county of Androscoggin and State of Maine, have invented certain new and useful Improvements in Trolleys; and I do hereby declare the following to be a full, clear, and exact description of the invention,

such as will enable others skilled in the art to' vide a trolley-head havinga slot in which is secured a trolley-finder and also having a spring secured to one side of the trolley-head and engaging a flat surface on the support of the trolley-wheel, whereby the trolley-Wheel is retained in a predetermined position and to complete the circuit for the current from the supply-wire to the motor should in any way the contact of the support for the trolleywheel and the trolley-pole be disturbed.

In describing the invention in detail reference is had to the accompanying drawings, forming a part of this specification, wherein like figures of reference indicate similar parts throughout the several views, in which- Figure 1 is a perspective view of my improved trolley-head. Fig. 2 is a view on line 2 2, Fig. 1. Fig. 3 is a detached view of the spring for retaining the trolley-wheel in its normal position.

Referring to the drawings by referencefigures, 1 designates the trolley-pole, which is provided at its upper end with a shield 2 to prevent the guy-wires from engaging the Said trolleypole isprovided with an extension 3, in which is swiveled a support which is provided with two arms having an aperture formed in the upper end of each of said arms. J ournaled in said arms is a trolley-wheel 5, which is adapted to engage the trolley-wire. The support 4: is held in position by a key 6, passing through the lower end of the support. Formed integral with or secured to one side of the support is a strip 7 said strip being parallel with and at a short distance above the extension3. Secured to one side of the extension 3 and be tween the support 4 and the shield 2 is a spring 8. Said spring 8 is adapted to engage the strip 7 to hold the trolley-wheel in its normal position, as shown in Fig. 1. Formed in the outer end of said extension 3 is a slot 9, in which is secured in any suitable manner a trolley-finder of any suitable construction.

The spring 8 and the strip 7 perform an ad ditional function of forming a circuit by which the current is conducted from the currentwire to the motor should the contact of the support 4. and the extension 3 be disturbed.

It will be noted that various changes may be made in the details of construction with out departing from the spirit of my invention.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

A trolley-head comprising in combination with the pole, the trolley-wheel-carrying yoke swiveled in said pole, the shank portion of the yoke having a shoulder resting on the pole, an elongated strip 7 secured at right angles to the shank of the yoke in a recessed portion thereof, the lower edge of said strip and the shoulder being in the same plane, and the springbar 8 secured to the trolley-pole and bearing longitudinally against the outer face of said strip, as shown and described.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES A. JACKSON.

Witnesses:

J L. SMALL, M. T. SMALL. 

